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volvo Workshop Repair Guides

Volvo Workshop Manuals

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Use a dial indicator and magnetic holder.
Position the crankshaft with the two outer main bearings in the V block.
Turn the crankshaft and measure the radial runout on the other main bearing journals.
For the correct values, see Specifications, mechanical See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Specifications.

Removing the piston rings

Use piston ring pliers.
Remove coke deposits. Scrape the piston ring grooves clean with a groove cleaner or a broken and filed piston ring.
Check for damage, wear and cracks.

Checking piston ring axial clearance

Use new piston rings.
For the correct values, see Specifications, mechanical See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Specifications.

Checking the piston diameter

Engine, Cooling and Exhaust > Engine > Cylinder Block Assembly > Crankshaft, Engine > Component Information > Service and Repair > Crank Mechanism, Measuring > Page 3095

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